Update Mimic4Dataset.py

Mimic4Dataset.py

@@ -1048,7 +1048,8 @@ class Mimic4Dataset(datasets.GeneratorBasedBuilder):
         features = datasets.Features(
             {
                 "label": datasets.ClassLabel(num_classes=2,names=["0", "1"]),
-                "DEMO": datasets.Array2D(shape=(None, 4), dtype='int64') ,
+                #"DEMO": datasets.Array2D(shape=(None, 4), dtype='int64') ,
+                "DEMO": datasets.Sequence(datasets.Value("int64")),
                 "COND" : datasets.Sequence(datasets.Value("int64")),
                 #"COND" : datasets.Array2D(shape=(None, self.size_cond), dtype='int64') ,
                 "MEDS" : datasets.Array2D(shape=(None, self.size_meds), dtype='int64') ,